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CN-122025467-A - Reclosing switch and vacuum circuit breaker

CN122025467ACN 122025467 ACN122025467 ACN 122025467ACN-122025467-A

Abstract

The invention discloses a reclosing switch and a vacuum circuit breaker, which relate to the technical field of vacuum circuit breakers and aim at solving the technical problems that the existing vacuum circuit breaker mainly drives the circuit breaker to finish closing and opening actions through an electromagnetic operating mechanism, but the electromagnetic operating mechanism realizes stable and continuous output of current on the premise of realizing stable closing and opening actions so as to form a stable magnetic field to maintain the closing and opening actions, when current fluctuates, the switch is easy to surreptitiously jump. The invention has the advantage of avoiding the switch from stealing and tripping after closing.

Inventors

  • YANG XIAOSONG
  • ZHOU JIANXIN
  • JI HONGSHUN
  • JI JIAYI

Assignees

  • 南京天卓电气科技有限公司

Dates

Publication Date
20260512
Application Date
20241112

Claims (9)

  1. 1. The reclosing switch and the vacuum circuit breaker are characterized by comprising symmetrically arranged bases (1); The novel switch is characterized in that a U-shaped shell (4) and a frame-shaped connecting piece (2) are detachably connected between the bases (1), an insulating substrate (3) is detachably arranged at the top of the inner wall of the U-shaped shell (4), a switch-on/switch assembly (7) is detachably arranged at the bottom of the insulating substrate (3) at equal intervals, a switch-on/switch indication assembly (8) is fixedly arranged at one side of the bottom of the insulating substrate (3), and a switch-off handle assembly (9) is movably arranged at one side of the U-shaped shell (4); the switching-on/off switch assembly (7) comprises a vacuum arc-extinguishing chamber (701) which is detachably arranged at the top of the insulating substrate (3), and the switching-on/off switch assembly (7) further comprises a switching-on/off module (11) which is detachably arranged at the top of the inner wall of the insulating substrate (3); the opening and closing module (11) comprises a bottom plate (1101) with a chassis (1109) detachably arranged in the middle of the top, a linkage assembly (12) is detachably and movably arranged at the top of the chassis (1109), and a limit assembly (13) is rotatably arranged in the chassis (1109); The linkage assembly (12) comprises a linkage disc (1201) with a hollow hole formed therein, convex keys (1203) are symmetrically formed on the inner wall of the hollow hole, an extension plate (1204) is formed at one end of the linkage disc (1201), and a pull groove (1205) is formed at one side of the extension plate (1204); The limiting component (13) comprises a linkage seat (1301) with key grooves (1303) formed on the outer edge surface symmetrically, at least two guide grooves (1304) are formed on the top of the outer edge surface of the linkage seat (1301) in an annular array, an anti-drop groove (1305) is formed on the top of one side of the inner wall of the guide groove (1304), a convex key (1203) is clamped and arranged in the key grooves (1303), a movable seat (1127) is movably arranged in the linkage seat (1301), at least two strip-shaped bulges (1128) are formed on the outer edge surface of the movable seat (1127) in an annular array structure, an actuating rod (1129) and a push rod (10) are respectively arranged at the top and the bottom of the movable seat (1127) in a threaded fit manner, a hole body which is matched with the push rod (10) is formed in the bottom plate (1101), an elastic pulling mechanism I for hanging a connecting pulling groove (1205) and playing a pulling effect on the linkage disc (1101) is arranged on one side of the upper end surface of the bottom plate (1101), a permanent magnet pulling mechanism (1106) is arranged between the top of the movable seat (1126) and the permanent magnet pulling mechanism (1101), a permanent magnet pulling mechanism (1106) is arranged on the top of the bottom plate (1101), and the top of the magnetic mechanism (1106) is arranged on the top surface, the actuating rod (1129) penetrates out of the mounting groove and is detachably fixed with the permanent magnet sliding seat (1126), an electromagnetic coil (1130) is sleeved outside a section of the actuating rod (1129) positioned in the mounting groove, a poking ring (1115) is rotatably arranged on one side of the upper end face of the chassis (1109), bumps (1116) are formed at the top and the bottom of the outer edge face of the poking ring (1115), the bumps (1116) are distributed in ninety degrees, and the bumps (1116) are respectively abutted against the poking mechanism and the linkage assembly (12); The brake separating handle assembly (9) comprises a U-shaped mounting frame (901) with the top end detachably connected to the bottom of the insulating substrate (3), a U-shaped supporting plate (903) is detachably arranged at the bottom of one side of the inner wall of the U-shaped mounting frame (901), a rotating rod (911) with one end extending out of the U-shaped shell (4) is rotatably arranged in the U-shaped mounting frame (901), a handle body (910) is detachably connected to one end of the rotating rod (911) extending out of the U-shaped shell (4), and a plane groove (913) is formed in the outer edge surface of one end, far away from the handle body (910), of the rotating rod (911); The inside of U-shaped supporting plate (903) is rotatably provided with driven rod (914), one end of driven rod (914) far away from handle body (910) can be rotated out of U-shaped mounting bracket (901) and side plates (917) are symmetrically and detachably fixed, one end of side plates (917) which are symmetrically arranged is rotatably provided with shaft rods (918) far away from driven rod (914), the outer edge surface of shaft rods (918) between side plates (917) is provided with connecting plates (919), one end of each connecting plate (919) is internally provided with an elliptical groove (921), shaft rods (918) are slidably arranged in elliptical grooves (921), the top ends of connecting plates (919) are welded and fixed in planar grooves (913), springs (920) are sleeved on the outer edge surfaces of connecting plates (919), and two ends of each spring (920) are respectively abutted to the planar grooves (913) and the outer edge surfaces of shaft rods (918); An L-shaped limiting plate (902) and a U-shaped positioning plate (904) are detachably arranged on the inner wall of the U-shaped shell (4) facing one side of the handle body (910), a cross rod (906) is arranged in the L-shaped limiting plate (902) in a sliding insertion fit manner, and one end of the cross rod (906) penetrates out of the U-shaped positioning plate (904); The outer edge surface of the cross rod (906) is equidistantly provided with a poking plate (907) which is movably abutted to the poking mechanism to realize opening and closing actions.
  2. 2. The reclosing switch and vacuum circuit breaker according to claim 1, wherein the U-shaped housing (4) is detachably mounted with an L-shaped limiting plate (902) and a U-shaped positioning plate (904) on the inner wall facing one side of the handle body (910), a cross rod (906) is mounted in sliding insertion fit with the L-shaped limiting plate (902), one end of the cross rod (906) penetrates out of the U-shaped positioning plate (904), a transverse limiting groove (905) is formed in the U-shaped positioning plate (904) in a centered manner, a positioning block (908) is formed on the outer edge surface of the cross rod (906), and the positioning block (908) is arranged in the transverse limiting groove (905) in a sliding insertion fit manner.
  3. 3. The reclosing switch and vacuum circuit breaker according to claim 2, wherein the driven rod (914) is located on a section of outer edge surface inside the U-shaped mounting frame (901) and is formed with a shifting block (915), a bearing protruding rod (909) is formed on an outer edge surface of the cross rod (906), the shifting block (915) is movably abutted and pushes the bearing protruding rod (909), one end of the driven rod (914) extending out of the U-shaped mounting frame (901) is formed with a square block two (916), a square groove one which is detachably sleeved outside the square block two (916) is formed in the side plate (917), one end of the rotating rod (911) extending out of the U-shaped housing (4) is formed with a square block one (912), and a square groove two which is matched with the square block one (912) in a plugging mode is formed in the handle body (910).
  4. 4. The reclosing switch and vacuum circuit breaker according to claim 3, wherein the first elastic pulling mechanism comprises a bolt (1108) with one end in threaded connection with one corner of the upper end surface of the bottom plate (1101), a second tension spring (1122) is hooked inside the top end of the bolt (1108), the other end of the second tension spring (1122) is hooked in the pull groove (1205), and a clamping groove (1202) is formed in one end, far away from the extension plate (1204), of the linkage disc (1201).
  5. 5. The reclosing switch and vacuum circuit breaker according to claim 4, wherein the toggle mechanism comprises a pillar (1110) fixedly arranged at one corner of the upper end face of the bottom plate (1101), a connecting arm (1111) is rotatably connected to the top end of the pillar (1110), an L-shaped clamping plate (1112) is formed by bending one half side of one end of the connecting arm (1111) far away from the pillar (1110), the L-shaped clamping plate (1112) is movably clamped inside the clamping groove (1202), a rocker arm (1113) is connected to the other half side of one end of the connecting arm (1111) far away from the pillar (1110), and a tongue plate (1114) is formed by bending one end of the rocker arm (1113) far away from the connecting arm (1111) upwards.
  6. 6. The reclosing switch and vacuum circuit breaker according to claim 5, wherein the elastic pulling mechanism II comprises a screw rod (1118) symmetrically arranged and connected with the bottom end of the screw rod (1109) in a threaded mode, a limit ring (1119) is sleeved on the outer edge surface of the linkage seat (1301), lugs (1120) are symmetrically arranged on the outer edge surface of the limit ring (1119), the lugs (1120) are sleeved on the outer edge surface of the screw rod (1118), nuts in threaded fit connection with the screw rod (1118) are arranged at the top and the bottom of the lugs (1120), a tension spring I (1121) is hooked on the outer edge surface of the top end of the screw rod (1118), one end, far away from the screw rod (1118), of the tension spring I (1121) is hooked on a tongue plate (1114), and a hanging hole for hooking one end of the tension spring I (1121) is formed in an inner mode towards one end of the rocker arm (1113).
  7. 7. The reclosing switch and vacuum circuit breaker according to claim 6, wherein an annular block (1302) is formed on the outer edge surface of the linkage seat (1301), a notch is formed in the annular block (1302) corresponding to the position of the key groove (1303), the lower end surface of the annular block (1302) is abutted to the linkage disc (1201), the lower end surface of the limit ring (1119) is abutted to the upper surface of the annular block (1302), a bearing (1117) is arranged in the chassis (1109), the bearing (1117) is fixedly connected with the linkage disc (1201), upright posts (1105) are arranged at four corners of the upper end surface of the bottom plate (1101), an insulating box cover (1102) is covered at the edge position of the upper end surface of the bottom plate (1101), a top plate (1104) is arranged at the top of the insulating box cover (1102), screws (1106) with one ends screwed into the upright posts (1105) are arranged at four corners of the upper end surface of the top plate (1104), the upright posts (1105) are connected with the insulating box cover (1201) in a fixed manner, and the insulating box cover (1102) is detachably arranged on one side of the insulating box cover (1102).
  8. 8. The reclosing switch and vacuum circuit breaker according to claim 7, wherein the top of the top plate (1104) is detachably provided with a cover body (1123), the top of the cover body (1123) is detachably provided with a cover plate (1124) covering the outside of the permanent magnet slide (1126), and the top of the inner edge surface of the cover body (1123) is provided with an annular groove, a polyurethane damping plate (1125) is detachably arranged in the annular groove, the polyurethane damping plate (1125) is arranged between the cover plate (1124) and the cover body (1123), an annular protrusion is formed on the outer edge surface of the bottom end of the permanent magnet slide (1126), the annular protrusion is movably abutted to the polyurethane damping plate (1125), the top of the cover plate (1124) is detachably provided with an end cover (1131), the top of the end cover plate (1131) is detachably provided with a flange plate (1132), the flange plate (1132) is detachably connected with the top of the inner wall of the insulating substrate (3), the inside of the end cover plate (1131) is provided with a threaded connection rod (1133) in the cover plate (1124), and the opening and closing component (1129) is detachably connected with the top end plate (1129).
  9. 9. The reclosing switch and vacuum circuit breaker according to claim 8, wherein the vacuum interrupter (701) is covered outside the opening and closing execution assembly (14), the vacuum interrupter (6) covered outside the vacuum interrupter (701) is detachably arranged on the upper end surface of the insulating substrate (3) at equal intervals corresponding to the position of the opening and closing switch assembly (7), and the opening and closing indication plate (5) is detachably arranged on one side of the U-shaped housing (4).

Description

Reclosing switch and vacuum circuit breaker Technical Field The invention relates to the technical field of vacuum circuit breakers, in particular to a reclosing switch and a vacuum circuit breaker. Background A vacuum circuit breaker is a circuit breaker with a vacuum interrupter, also known as a circuit breaker in which arcing can occur in a vacuum medium. The vacuum circuit breaker uses vacuum as an arc extinguishing medium, when contacts are separated, an arc is generated between the contacts, and the arc is extinguished rapidly in a vacuum environment, so that current is cut off, and when a movable contact and a fixed contact are separated under the action of an operating mechanism, the arc is generated between the contacts. The contact surface volatilizes steam at high temperature, and because the contact is designed into a special shape, a magnetic field is generated when current passes through, and the electric arc rapidly moves along the tangential direction of the contact surface under the action of the magnetic field. After condensing part of the metal vapor on the metal cylinder, the electric arc is extinguished when the natural zero crossing occurs, and the medium strength between the contacts is quickly restored. At present, when the traditional vacuum circuit breaker is used, the electromagnetic operating mechanism drives the circuit breaker to finish the switching-on and switching-off actions, but the electromagnetic operating mechanism realizes stable and continuous current output on the premise that the electromagnetic operating mechanism realizes stable switching-on and switching-off, so that a stable magnetic field is formed to maintain the switching-on and switching-off actions, and when current fluctuates, the switch is easy to be subjected to the condition of stealing and tripping, and in view of the problem, we propose a reclosing switch and the vacuum circuit breaker. Disclosure of Invention The invention aims to provide a reclosing switch and a vacuum circuit breaker, which are used for solving the technical problems that the existing vacuum circuit breaker mainly drives the circuit breaker to finish switching-on and switching-off actions through an electromagnetic operating mechanism, but the electromagnetic operating mechanism realizes stable and continuous output of current on the premise that the electromagnetic operating mechanism realizes stable switching-on and switching-off, so that a stable magnetic field is formed to maintain the switching-on and switching-off actions, and when current fluctuates, the switch is easy to steal and jump. In order to solve the technical problems, the invention provides a reclosing switch and a vacuum circuit breaker, which comprise symmetrically arranged bases; The base is detachably connected with a U-shaped shell and a frame-shaped connecting piece, an insulating substrate is detachably arranged at the top of the inner wall of the U-shaped shell, an opening and closing switch assembly is detachably arranged at the bottom of the insulating substrate at equal intervals, an opening and closing indicating assembly is fixedly arranged at one side of the bottom of the insulating substrate, and an opening and closing handle assembly is movably arranged inside one side of the U-shaped shell; the switching-on/off switch assembly comprises a vacuum arc-extinguishing chamber which is detachably arranged at the top of the insulating substrate, and the switching-on/off switch assembly further comprises a switching-on/off module which is detachably arranged at the top of the inner wall of the insulating substrate; The opening and closing module comprises a bottom plate with a chassis detachably arranged in the middle of the top, a linkage assembly is detachably and movably arranged at the top of the chassis, and a limit assembly is rotatably arranged in the chassis; the linkage assembly comprises a linkage disc with a hollow hole formed in the interior, convex keys are symmetrically formed on the inner wall of the hollow hole, an extension plate is formed at one end of the linkage disc, and a pull groove is formed at one side of the extension plate; The limiting assembly comprises a linkage seat with key grooves formed in the outer edge surface symmetrically, at least two guide grooves are formed in the top of the outer edge surface of the linkage seat in an annular array, anti-falling grooves are formed in the top of one side of the inner wall of each guide groove, convex keys are clamped and arranged in the key grooves, a movable seat is movably arranged in the linkage seat, at least two strip-shaped protrusions are formed on the outer edge surface of the movable seat in an annular array structure, an actuating rod and a push rod are respectively arranged at the top and the bottom of the movable seat in a threaded fit manner, a hole body which is matched with the push rod in a penetrating manner is formed in the bottom plate, an elastic pulling mechani